LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Seat Belt Control System (DTC/Circuit Diagnosis) (Except Hybrid)) >> DTC/Circuit Diagnosis >> DTC B2453: BR Stroke Sen CIRC >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK PRE-CRASH SEAT BELT CONTROL UNIT INPUT SIGNAL

    1. Turn ignition switch ON.
    2. Select BRK PEDAL SNSR1 and BRK PEDAL SNSR2 in DATA MONITOR mode with CONSULT.
    3. Check BRK PEDAL SNSR1 and BRK PEDAL SNSR2 indication under the following conditions.
      Monitor item Condition Voltage (V)
      (Approx.)
      BRK PEDAL SNSR1 Brake released → depressed 1 → 4
      BRK PEDAL SNSR2 4 → 1

    Is the inspection result normal?

    YES 

    GO TO STEP   6  .

    NO 

    GO TO STEP 2  .

  2. CHECK BRAKE PEDAL STROKE SENSOR POWER SUPPLY

    1. Turn ignition switch OFF.
    2. Disconnect brake pedal stroke sensor harness connector.
    3. Check voltage between brake pedal stroke sensor harness connector and ground.
      Brake pedal stroke sensor Ground Voltage (V)
      (Approx.)
      Connector Terminal
      E51 2 5

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    GO TO STEP 3  .

  3. CHECK BRAKE PEDAL STROKE SENSOR POWER SUPPLY CIRCUIT

    1. Disconnect pre-crash seat belt control unit (driver side) harness connector.
    2. Check continuity between pre-crash seat belt control unit (driver side) harness connector and brake pedal stroke sensor harness connector.
      Pre-crash seat belt control unit (driver side) Brake pedal stroke sensor Continuity
      Connector Terminal Connector Terminal
      B58 10 E51 2 Yes
    3. Check continuity between pre-crash seat belt control unit (driver side) harness connector and ground.
      Pre-crash seat belt control unit (driver side) Ground Continuity
      Connector Terminal
      B58 10 No

    Is the inspection result normal?

    YES 

    Replace pre-crash seat belt control unit (driver side). Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness or connector.

  4. CHECK BRAKE PEDAL STROKE SENSOR CIRCUIT

    1. Disconnect pre-crash seat belt control unit (driver side) harness connector.
    2. Check continuity between pre-crash seat belt control unit (driver side) harness connector and brake pedal stroke sensor harness connector.
      Pre-crash seat belt control unit (driver side) Brake pedal stroke sensor Continuity
      Connector Terminal Connector Terminal
      B58 2 E51 1 Yes
      12 3
      17 4
    3. Check continuity between pre-crash seat belt control unit harness connector (driver side) and ground.
      Pre-crash seat belt control unit (driver side) Ground Continuity
      Connector Terminal
      B58 2 No
      12
      17

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace harness or connector.

  5. CHECK BRAKE PEDAL STROKE SENSOR

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Replace brake pedal stroke sensor. Refer to REMOVAL AND INSTALLATION .

  6. CHECK INTERMITTENT INCIDENT

    Refer to INTERMITTENT INCIDENT .

    Inspection End.

scientia non olet · About LEMON Manuals